Side guide for printing-presses.



, 0.7. MoARTHUR; 7 SIDE GUIDE FOR PRINTING PRESSES. APPLICATION FILED APR. 28, 1906.

Patented Sept. .29, 1908;

W/INESSES:

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ATTORNEY CHARLES J. MCARTHUR, OF NEWARK, NEW JERSEY.

SIDE GUIDE FOR PRINTING-PRESSES.

Specification of Letters Patent.

Patented Sept. 29 1908.

Application filed April 28, 1906. Serial No. 31 252.

T all whom it may concern:

Be it known that 1,:CHARLES J. Mc-AR- THUR, a citizen of the United States of America, and resident of Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements 111 Side Guides for Printing-Presses, of which the following is a specification.

This Invention relates to improvements in slde guides for printing presses,of that class .used for gaging the lateral position of the sheets as they are fed to the press, and the object thereof is to rovide an efficient guide for the side of the sfieet, with suitable mechanism in connection therewith for removing the same from contact with the sheet after the sheet has been. properly placed in position. This object is accomplished by the construction illustrated in the accompanying drawings, in which: I

Figure 1 is'a perspective view showing the invention, the operating arm being omitted;

Fig. 2 is an'elevation showing a side View of the operatlng arm 1n connection with the guide Fig. 3 is a detail view showing part of the support for the guide and its adjusting mechanlsrn; and Fig. 4 is a detail view of the operatlng arm.

Similar numerals of reference indlcate corresponding parts throughout the several views, and referring now to the same: 1 is the feed-board of a printing an ad ustable base which is p aced upon the feed board and secured thereto by any suit.

able means. At one end of the base 2'is a vertical stud 3 upon which is pivotally mounted a supporting block, the latter being held in adjusted osition relative to the base 2 by means of a t umb-nut 5 which is driven upon theprojeoting end of the stud down against the top of the block. One yortion ofthe block 4 has an extending sfeeve 6 which isexternallyscrew threaded and there- A supand sleeve 6 and also has screw-threaded engagement with the nut 7. The threads on the sleeve ti'and those on the bar 8 are made respectively right and left, and the one is also made to a finer gage than the other, or vice versa, and it will therefore appear that when the nut 7 is turned, the bar 8 will thereby become moved longitudinally in the block 4 in the direction accordingly as the nut is turned, and the extent of the move- .ment .of the bar to each turn of the nut ress, and 2 is the block or moving longitudinally therein when the set-screw is tightened. Upon the outer end of the bar 8 is fixed a collar 1 1, and another collar 12 is mounted upon the bar and collar 11 is secured in adjusted positions thereon by the set-screw 13. The latter collarhas jaws 14 which project from its eriineter. Between the collars 11 and 12 is mounted u on the bar 8 an oscillating lever arm 15 whici has a lug 16 protruding from its inner side and which extends between the jaws 14' of the collar 12 and serves to limit the oscillating movement of the lever-arm by coming into contact with the uppermost of said jaws. Upon the outer side of the leverarm is secured a pendent guide-plate 17 which has in connection therewith a prong 18, the lower ergo of the former being adapted forest squarely upon the upper surface ofstho feed-board 1 when in normal position. The projecting end 19 of the lever-arm extends betwecn lateral lugs 20 at the end of the operating arm 21 which has rigid attachment with an oscillating shaft 2 by means of a bracket 23.

The shaft 22 is a part of the printing press nection with the-lever arm as above stated; A finer ad ustment of the guide 18 then made as desired by manipulating the nut 7 which effects the movement of the guide laterally respecting the feed-board, and after such adjustment the bar 8 is secured by tightening the set-screw 10 while the guide rests upon the feed board. The sheet of paper is adjusted with its edge against the outer face of its the guide-plate beneath the prong, and as.

the sheet is drawn from thegfeed board into I the printing press, the guide is automatically lifted from the feed board because of the oscill ating m oven'ielnt of the shaft 22 and its con neeted relation therewith, and therefore the guide will not interfere in any manner with the subsequent movement of the sheet.

Where a stationary side guide is employ ed the adjacent edges of the sheet of paper rub against the guide with more or less force and cutting effect as the sheets are drawn into the press, and especially when the sheet is set slightly out of true. In this manner the guide becomes considerably worn because of friction occasioned by contact with the moving edges of the sheet. However, in the present instance, the guide is lifted. clear of the sheet during the passage of the latter from its adjusted position on the feed-board into the press. Thus it will appear that this side guide may be employed when feeding deekled edge papers, and crowding of the sheets when set out of true is obviated aswell as the liability of frayed sheets becoming caught by the side guide as occurs where a stationary side uide is used. By lifting the guide as set forth after the sheet has been set, a clear and unobstructed passage of the latter into the press is afforded with the obvious obviation of OVllSWi'llCll attend the ordinary,

stationary guide.

Having thus described my invention what claim new and desire to secure by Letters atent is:

1. In a side guide for printing presses, a &adapted to be adjustably secured to the rd board of the press; a pivoted block in b fe connection with the base, the block having an externally threaded sleeve; a supporting bar extending'through the block and sleeve;- an adjusting nut having screw-threaded relations with both the sleeve and bar, and thereby being adapted to move said bar relative to the block when turned a guide plate normally resting u on the feed-board and having supported re ation with said bar and suitable mechanism in connection with the press to automatically actuate the guide plate.

2. In a side guide for printing presses a base attached to the feed board and a supporting bar in adjustable relation with the base; a lever arm supported by said bar and having pivotal relation therewith; a guide in connection with the lever arm adapted to rest normally upon the feed-board; and an operating arm in connection with the lever arm to actuate the latter.

3. In'a side guide for rinti'ng presses, a base having a'supporting loek in adjustable relation therewith; a supporting bar in adj ustable relation with the block, and having an oscillating lever arm in connection therewith; a guide connected with the lever arm and adapted to normally rest upon the feedboard and means to actuate the lever arm.

In testimony whereof I a'liix my signature, in presence of two witnesses.

CHARLES J. MoARTI-IUR.

Witnesses:

F. W. HoRs'rMANN, H. G. Gasman. 

